한국소음진동공학회논문집 (Transactions of the Korean Society for Noise and Vibration Engineering)

  • 제20권6호
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  • Pages.593-603
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  • 2010
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  • 1598-2785(pISSN)
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  • 2287-5476(eISSN)
한국소음진동공학회 (The Korean Society for Noise and Vibration Engineering)
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유체유동에 의한 다중벽 탄소나노튜브의 안정성 해석

Stability Analysis of Multi-wall Carbon Nanotubes Conveying Fluid

  • 투고 : 2010.04.29
  • 심사 : 2010.05.24
  • 발행 : 2010.06.20
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초록

In this paper, vibration and flow-induced flutter instability analysis of cantilever multi-wall carbon nanotubes conveying fluid and modelled as a thin-walled beam is investigated. Non-classical effects of transverse shear and rotary inertia and van der Waals forces between two walls are incorporated in this study. The governing equations and the associated boundary conditions are derived through Hamilton's principle. Numerical analysis is performed by using extend Galerkin method which enables us to obtain more exact solutions compared with conventional Galerkin method. Cantilevered carbon nanotubes are damped with decaying amplitude for flow velocity below a certain critical value, however, beyond this critical flow velocity, flutter instability may occur. Variations of critical flow velocity with both radius ratio and length of carbon nanotubes are investigated and pertinent conclusion is outlined.

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참고문헌

  1. Yoon, J., Ru, C. Q. and Mioduchowski, A., 2006, “Flow-induced Flutter Instability of Cantilever Carbon Nanotubes,” International Journal of Solids and Structures 43, pp. 3337-3349. https://doi.org/10.1016/j.ijsolstr.2005.04.039
  2. Yoon, J., Ru, C. Q. and Mioduchowski, A., 2005, “Vibration and Instability of Carbon Nanotubes Conveying Fluid,” Composites Science and Technology 65, pp. 1326-1336. https://doi.org/10.1016/j.compscitech.2004.12.002
  3. Yoon, J., Ru, C. Q. and Mioduchowski, A., 2003, “Vibration of an Embedded Multiwall Carbon Nanotube,” Composites Science and Technology 63, pp. 1533-1542. https://doi.org/10.1016/S0266-3538(03)00058-7
  4. Wang, C. M., Tan, V. B. C. and Zhang, Y. Y., 2006 “Timoshenko Beam Model for Vibration Analysis of Multi-walled Carbon Nanotubes,” Journal of Sound and Vibration, Vol. 294, pp. 1060-1072. https://doi.org/10.1016/j.jsv.2006.01.005
  5. Metin Aydogdy, 2008, “Vibration of Multiwalled Carbon Nanotubes by Generalized Shear Deformation Theory,” International Journal of Mechanical Sciences, Vol. 50, pp. 837-844. https://doi.org/10.1016/j.ijmecsci.2007.10.003
  6. Wang, C. Y., Ru, C. Q. and Mioduchowski, A., 2005 “Free Vibration of Multiwall Carbon Nanotubes,” Journal of Applied Physics 97 114323, pp. 1-11. https://doi.org/10.1063/1.1898445
  7. Librescu, L. and Song, O. S., 2006, Thinwalled Composite Beams : Theory and Application, Springer.
  8. Choi, J. W. and Song, O. S., 2001, “Stability Analysis of Composite Material Pipes Conveying Fluid,” Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 11, No. 8, pp. 314-321.
  9. Choi, J. W., Gil, B. R. and Song, O. S., 2008, “Flow-induced Vibration of Carbon Nanotubes Conveying Fluid,” Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 18, No. 6, pp. 654-662. https://doi.org/10.5050/KSNVN.2008.18.6.654